Apparatus for treating materials with liquids.



R. U. BUNKER. APPARATUS POR TP.

EATING MATERIALS WITH LIQUIDS.

APPLICATION FILED DELLE, 1913.

Patented Mal. 16, 1915.

RAYMOND U. BUNKER, OF YONKERS, NEW YORK.

APPARATUS FOR TREATING MATERIALS WITH LIQUIDS.

Specification of Letters Patent.

Patented Mar. 16, 1915.

Application led December 8, 1913. Serial No. 805,371. i

T all whom it may concern Be it known that I, RAYMOND U. Buisman, a citizen of the United States, residing at Yonkers, county of Westchester, and State of New York, have invented certain new and useful Improvements in Ap aratus for Treating Materials with Liqui of which the following is a clear, full, and exact description.

This invention relates to apparatus for treating materials with liquids, and which is capable of use in various connections where materials which are being spun in a centrifugal are to be treated with a liquid, either for washing, spraying or other purposes. J- Y The invention is Well adapted for use in sugar refineries and raw sugar factories, for the purpose of washing `the sugar with water when the sugar is being spun in the centrifugal.

Some of the objects of the invention are the applying of the liquid to the surface of the material to be treated, in the most direct and advantageous manner, whereby the greatest effect is obtained by a minimum of liquid or water (in the sugar-making art, a. consequent saving in the finished crystals and saving of fuel bv reason of less reevaporation); the application of the liquid automatically by opening a valve; the automatic withdrawal of the washin pipe or 1 nozzle from the centrifugal by c osmg the valve; the catching of anv drip from the apparatus in the centrifugal, thus assuring a clean and dr v Hoor; and, as the application of the liquid is automatic, it may be applied in an absolutely sterile state free: from contamination by the use of dirty vessels or the workmens hands.

These being among the objects of the present invention, the same consists of features of construction to be hereinafter described and then claimed with reference to the accompanying drawings showing a suitable embodiment or referred form of the y invention, and in which- Figure 1 is a view showing the present improvement in connection with a centrifugal machine, the improved apparatus being shown in a vertical section and the centrifugal in elevation, the broken lines indi- 1 eating the basket of the centrifugal; Fig. 2 "is a detail view on a largerscale, showing,

partly in elevation and partly in section, the means for operating the discharge pipe or lbe rotated through an angle of 90,

nozzle and controlling the action of the admitted liquid on the same; and Fig. 3 is a detail sectional view showin a transverse channel at the upper end o the pressure chamber.

' Referring now to the drawings specifically, which, as before stated, illustrate a suitable or preferred embodiment of the invention, at the top of the apparatus is a tank or receptacle'lO for the liquid, such as water, which is permitted to How thereinto from any suitable source. Said tank is provided with an outlet passage 11 having a return bend, so as to constitutea Siphon, while within the tank is a float device 12 to indicate the desired level of the liquid which is admitted to the tank. The outer leg of the Siphon 11 leads to a downwardly eX- tending pipe 13, the lower end of which is connected with the bottom of an upwardly extending liquid pressure chamber 15. This chamber 15 receives a piston 16 which is adapted to work up and down therein, said piston being provided with'an aperture 17 with whchis connected a pipe 18 which extends downwardlv from said piston and is adapted to work in a neck 18* located at the lower end of the chamber 15, and which is packed bv a gland 18". so that a liquid-tight bearing is formed. The lower end of the reciprocatory pipe 1S is formed into a perforated discharge nozzle 19,`the extremity of which is closed by a cap 20. The piston 16 and nozzle 19 are reciprocated through the medium of the following mechanism.

At a point opposite the point of connection of pipe 13 with cylinder 15, there is connected an upwardly extending pipe or duct 21, which at its upper end is connected at 22 with the upper end of the liquid chamber 15, thus constituting a shunt passage for the liquid. In order to permit the piston 16 to'be moved from each end of its range of movement, without cutting ofi' the supply of liquid and affecting the operation, the pipe or passage 21 connects at its lower end with a. transverse channel 13n similar to the transverse channel 21, shown clearly in Fig. 3, which channels are located in the lower and upper ends respectively of chamber 15. Said plpe' or passage 21 is provided with a rotary valve 23 having a single port 23, from the stem 4of which valve extends an arm 24 provided at its outer end with a handle' 25,

y means of which handle the valve may l 18. As shown, said latch is se arated rom the gland 18h b a s ace whic is adapted to receive the e ge o a projection or collar 28 located on the pipe 18.

When the-handle 25 is swung upwardly, it may be secured in position by means of a latch 29, in which position the valve 23 opens the passage through the pipe 21. The valve 23 is held yieldingly in closed position and the latch 26 in its operative position by means of a tension spring 30 connected with\the handle 25.

It will appear hereinafter and from the drawings, that, by means of the above-described apparatus, thedischarge nozzle 19 is adapted to be moved downwardly into the basket 32 of a centrifugal machine 33, which may be a machine for washinglsugar or for treating other materials with -qulds. A guard or apron such as indicated in broken lines at the top of the centrifugal may be used if there is a tendency to project -liquid over the centrifugal.

The operation of the ap aratus is as follows: Liquid is caused to cwinto the tank 10 which, by reason of the float device 12, is

adapted to constitute means for indicating -the quantity'of liquid to be used in the centrifugal machine. As soon as the liquid 1n the tank reaches a level above the return bend of the siphon 11, the siphon begins to work automatically in the withdrawal of the liquid from the tank. From the siphon the liquid is conducted downwardly through the ipe 13 to a point under the piston 16. Beore admitting the liquid from the tank, the handle 25 is swung downwardly so as to bring the latch 27 into the path of the projection 28 on the pipe 18, and close the passage through the pipe 21. The gravity of the liquid will now-act to force the piston 16 upwardly in the liquid chamber 15, thus withdrawing the discharge nozzle' 1 9 from the basket 32 of the centrifugal. During the upward movement of the piston 16, the air in the liquid chamber 15 .will escape down through thevpipe 18 and nozzle 19. When the piston 16 has been moved to its upper position as shown in Fi 1, the projection 28 on the pipe 18 will e automatically engaged with and secured by the latch 26 The orce ofh the liquid having now through the medium of the pressure chamber raised the nozzle 19 clear of the eentrifugal, the latter may now be charged andA started, the material walling up as the machine comes up to speed, and said material may now be washed or otherwise treated.

To wash or treat the contents of the centrifugal, the valve 23 is opened by raising the handle 25 so as to release the latch 26 from the projection or collar 28, said handlc being moved into position to be secured by the atch 29, so that the valve is kept open while 'so latched. Valve 23 being new open, the head of liquid in the tank 10 sends the liquid down through the pipe 13, through the lower end of chamber 15 through the port of the valve, up through shunt pipe 21 and into the upper end of the prgssure chamber 15. The hydrostatic pressure in thev chamber 15 is therefore substantially balanced. The weight of the piston 16 and the pipe 18 and nozzle 19, now causes the said parts to move downwardl project t e nozzle 19 into the basket 32 of the centrifugal. As soon as the said arts begin to move downwardly, the liqui admitted to the upper part of the chamber 15 will flow into the pipe 18 and be discharged through the perforations of the nozzle 19, the liquid emerging from said nozzle in a direction norma to the face of the material which is bein spun in the basket. When the contents o the siphon tank 10 has been applied to the lcontents of the centrifugal, the valve 23 is closed automatically by the spring 30 when the handle 25 is released from atch 29, so that the lower latch 26 is again brought up snugly against the pi pe 18 to engage the projection 28 when t 1e discharge nozzle is a ain raised from the centrifugal. "When t e siphon tank is again filled, the liquid will a in act to raise the discharge nozzle from t e centrifugal basket 32. One of the functions of the latch 26 is to prevent the discharge nozzle from slipping back into the centrifugal should the iqmd supply fail or the piston or glandr leak badly. It will be seen that the pressure chamber and concomitant parts constitute means for operating the nozzle by the admitted quantity of li uid and controlling the action of said liqui Aon the nozzle.

It is obvious that the described apparatus is susceptible of a wide range of modifica-2 tion, as parts may be omitted, arts added and parts substituted without c anging the sco e of the invention.

hat I claim is 1. In an apparatus for treating materials with liquids, when such materials are bein -spun in a centrifugal, the combination o means for supplyin the liquid from a suitable source, means or applying the same to the face of the material w ich 1s being spun in a direction normal to the said face an means for utilizing hydraulic power of the liquid used for treating material to discontinue the treatment.

2. In an ap aratus for treating materials with liquids, e combination of a source of Vliquid supply, a pressure chamber connected therewith,'for receiving liquid therefrom. a discharge nozzle mounted for movement by so as to:

the liquid in said pressure chamber in one direction, and means for connecting said pressure chamber with said source of supply and the latter with said nozzle, in such way that said nozzle may move in opposite fdirection.

3. In an apparatus for treating materials with liquids, the combination of a source of liquid supply, a pressure chamber connected therewith, for receiving liquid therefrom, a discharge nozzle mounted for movement by the liquid in said pressure chamber in one direction, means for connecting said pressure chamber with said source of supply and the latter with said nozzle, in such way that said nozzle may moi e in opposite direction,`and a centrifugal machine out of and into which said nozzle is thereby movable.

4. In an apparatus for treating materials with liquids, the combination of a source of liquid supply, a pressure chamber connected therewith, for receiving liquid therefrom, a discharge nozzle mounted for movement by the liquld in said pressure chamber in one direction, and valve-controlled liquid-shunting means for substantially establishing a hydrostatic balance in said pressure cham ber, so that said nozzle may move in opposite direction.

5. In an apparatus for treating materials with liquids, the combination of a source of liquid supplv, a pressure chamber connected therewith and located thereunder for receiving liquid therefrom, a discharge nozzle I nounted for movement by the liquid in said pressure chamber in upward direction, and means for connecting said pressure chamber with said source of supply and the latter with said nozzle, in such way that said nozzle may more in downward direction.

G. In an apparatus for treating materials with liquids, the combination of a source-of liquid supply, syphonic means for controlling the same, a pressure chamber connected therewith, for receiving liquid therefrom` a discharge nozzle mounted for movement by the liquid in said pressure chamber in one direction, and means for connecting said pressure chamber with said source of supply and the latter with said nozzle, in such way that said nozzle may more in opposite direction.

7. In an apparatus for treatin materials with liquids, the combination o means of support, a longitudinally movable discharge nozzle thereon, means for controlling t e movement of said nozzle in a direction t0- n'ard said means of support, means for shifting the position of said controlling means, and means for permitting said nozzle to be moved in opposite direction When said controllin; r means is shifted, so that liquid will flow from said nozzle.

8. In an apparatus for treating materials with liquids, the combination of means of support, a longitudinally movable discharge nozzle thereon, haydraulic means for producmg the movement of said nozzle in a direction toward said means of support, means for changing the action of said lhydraulic means, so that said nozzle may move in an opposite direction, and means for permitting said nozzle to be moved in opposite dif rection when the action of said hydraulic means is changed, so that liquid will flow from said nozzle. f

In an apparatus for treatin materials with liquids, the combination ci means of support, a longitudinally movable discharge nozzle thereon, means for controlling the movement of Said nozzle in a direction toward said means of support, means for shifting the position of said controlling means, means for securing said nozzle in position at the end of said movement, and means for permitting said nozzle to be moved in opposite direction when said controlling means is shifted, so that liquid will flow from said nozzle.

10. In an apparatus for treating materials with liquids, the combination of a source of liquid supply, a pressure chamber connected at its receiving end with said source of supply, a duct connecting opposite ends of said chamber, a nozzle slidable in the receiving end of said chamber, an aperturcd piston on said nozzle, the aperture of which communicates rwith said nozzle, said piston working in said chamber, and a. valve controlling said duct.

11. In an apparatus for treating materials with liquids, the combination of a source of liquid supply, a. pressure chamber connected at its receiving end with said source of su ply, a duet connecting opposite ends of sai chamber, a nozzle slidable in the receiving end of said chamber, an apertured piston on said nozzle, the aperture of which communicates with said nozzle, said piston Working in said chamber, a valve controlling said duct, and latching means for securing said nozzle in position, when said piston 1s moved away from said receiving end.

12. In an apparatus for treating materials with liquids, the combination of a centrifugal machine, means for measuring and supplying a quantitv of liquid for use in said machine, a discharge nozzle for said liquid, movable into and out of said ma chine, and means for operating said nozzle by said quantity of liquid and controlling its action on said nozzle.

13. In an apparatus for treating materials with liquids, the combination with a centrifugal machine, of means for applying liquid to the face of the wall of material which is being spun in said machine, in a direction no al to the said face, and means for utilizing the hydraulic power of the liquid used for treating material to discontinue for raising said nozzlefrom and lowering it 1n a direction longitudinal of said nozzle.

the treatment.

14. In an apparatus for treating mate- Siviied at New York city, New York this ay of Deccmber,'19l3.

iiuls with liquids, the combination of a 3rd f spray nozzle having lateral jet orifices, and RAYMOND U. BUNKER.

mounted to be movable to a position oppo- Witnesses: -site the wall of material which is being spun GEO. L. VVHEELoCK, in a centrifugal machine, and power means BEATRICE Mmvls.

Correcton 1n Letters Patent No. 1,131,675.

in the printed specification requiring correction as follows: Page 3, line 32, for the word supplv read supply; and that the said Letters Patent should beread with this corrrection therein that the same may conform to the record of the case in the Patent Oice.

Signed and sealed this 30th day of March, A. D., 1915.

J. T. NEWTON,

Acting Commissioner of Patents.

[SEAL] 

